horn button repair?

[Rich1]

89 Commanche Horn button repair?

[Big_Mark]

What about it?

[gogmorgo]

Gonna need more info to be helpful, but here’s a couple threads about horn buttons. 

Basic function is the horn button grounds the switch circuit for a relay that sends power to the horn(s). 
If you can hear the relay click when you push the horn button, check for power at the horn (located behind the bumper, ahead of the driver’s side wheel, snail looking thing easily viewed from below, with an optional second horn on the opposite corner). It’s not uncommon for horns to get full of crap/water and quit working. You can also test the horn by jumping power to the connector on it. The factory horns ground through the mount so if you unbolt the horn for testing you’ll also need to ground the horn mount to your power source. 
 

If you can’t hear the relay click when you push the horn button, it’s possible the relay is bad or there’s an issue with the button or wiring in the steering column. 

There’s two styles of horn button, one for two spoke steering wheels and one for three spoke. They function more or less the same way but the steering column parts are different between the two. Just something to be aware of. All the rest of the wiring should be the same.